DM&IR Ore Dock No. 6 Reconstruction

Completed in 1983 by American Bridge, the DM&IR Ore Dock No. 6 Reconstruction project consisted of reconstructing a major ore dock originally built in 1919 and modified in 1964-1965. The 1964-1965 modifications included a 2.5 million ton storage area and a conveyor system for year-round taconite production. The 1981-1983 reconstruction dredged a berth for 1,000′ long, 60,000 ton capacity ore boats, and added a shiploader with 20 retractable shuttle conveyors designed by American Bridge. Each conveyor has a capacity of 1,350 tons per hour, making it the largest ore loading dock in the world.

Project Details

  • Owner: Duluth, Missabe, & Iron Range RR
  • Location: Duluth, Minnesota, United States
  • Performed as: American Bridge Company
  • Project value: $54,365,000.00
  • Completion Date: July 1983